71140001 has 2 divisors, whose sum is σ = 71140002. Its totient is φ = 71140000.

The previous prime is 71139983. The next prime is 71140007. The reversal of 71140001 is 10004117.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44089600 + 27050401 = 6640^2 + 5201^2 .

It is a cyclic number.

It is not a de Polignac number, because 71140001 - 2¹⁴ = 71123617 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71140007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35570000 + 35570001.

It is an arithmetic number, because the mean of its divisors is an integer number (35570001).

Almost surely, 2^71140001 is an apocalyptic number.

It is an amenable number.

71140001 is a deficient number, since it is larger than the sum of its proper divisors (1).

71140001 is an equidigital number, since it uses as much as digits as its factorization.

71140001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 71140001 is about 8434.4532128645. The cubic root of 71140001 is about 414.3537646156.

Adding to 71140001 its reverse (10004117), we get a palindrome (81144118).

The spelling of 71140001 in words is "seventy-one million, one hundred forty thousand, one".